초록 ▼

The efficiency of a vehicle having a body and a reciprocating piston four-stroke internal combustion engine is increased substantially by greatly reducing the size of the engine relative to the weight of the body. The great reduction in engine size relative to the weight of the body causes the engin

The efficiency of a vehicle having a body and a reciprocating piston four-stroke internal combustion engine is increased substantially by greatly reducing the size of the engine relative to the weight of the body. The great reduction in engine size relative to the weight of the body causes the engine to operate in a much more efficient range during almost all of the time of its operation. Peak power needs are satisfied by turbocharging and varying the compression ratio.

대표청구항 ▼

[ It is claimed:] [1.] A high-efficiency vehicle comprising:a body; anda reciprocating piston four-stroke spark-ignition internal combustion engine connected to said body to provide power for moving the vehicle, said engine having a combustion chamber volume, a compression ratio having a maximum, a

[ It is claimed:] [1.] A high-efficiency vehicle comprising:a body; anda reciprocating piston four-stroke spark-ignition internal combustion engine connected to said body to provide power for moving the vehicle, said engine having a combustion chamber volume, a compression ratio having a maximum, a maximum power output, means for supercharging the engine, and means for varying the compression ratio,wherein the vehicle has a weight, a ratio of maximum compression ratio times weight to combustion chamber volume of at least 100,000 kilograms per liter, and an engine maximum power output to weight ratio of at least 0.055 kilowatts of engine power per kilogram of weight,wherein the engine has an efficiency greater than 27% at a ratio of the actual power being used to the weight of the vehicle less than 0.0075 kilowatts per kilogram of vehicle weight.